Shuttle-check for looms.



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B. H. SMITH.

smnm one run LOOKS.

IPPLIOATIOR FILED IUKB 28, 1901. gggfil .5, Patented Nov. 3, 190&

EnocizHSmiZ/a A TTORNEPS J nu lulu mun. summ l VITNESSES: INVENTOK ENOCH H. SMITH, OF BELTON, SOUTH CAROLINA.

SHUTTLE-CHECK FOR LOOMS.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed June 26, 1907. Serial No. 380,920.

To all whom it may concern: 1

Be it known that I, ENOCH H. SMITH, a zitizen of the United States, residing at Belton, in the county of Anderson and State of struction and arrangement of South Carolina, have invented new and useful Improvements in Shuttle Checks for Looms, of which the following is a specification.

This invention relates to shuttle check mechanism for looms, and has for its principal object to provide an improved means whereby the travel of the shuttle may be arrested at the proper time, and in such manner as to prevent rebounding of the shuttle and breaking of the warps.

A further object of the invention is to provide a shuttle check mechanism of such nature as to permit rapid and free operation of the picker mechanism, provision being made for releasing the binding strain on the shuttle in advance of the operation of the picker.

Wit-h these and other objects 111 view, as will more fully hereinafter a pear, the invention consists in certain nove features of corn parts, hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size and minor details of the structure may be made without departing from the s irit or sacrificing any of the advantages oi the invention.

In the accompanying drawings Figure 1 is a sectional elevation of a ortion of a loom provided with a shuttle c eck mechanism constructed in accordance with the inven tion. Fig. 2 is a transverse sectional view of a portion of the same looking in the direction of the arrow. Fig. 3 is a detail perspective view of a portion of the mechanism detached. Figs. 4 and 5 are diagrams illustrating the connections between the crank shaft and the lay, and the shortening of the spring- Similar numerals of reference are employed to indicate corresponding parts throughout the several figures of the drawings.

Extending under the lay is a protector rod having rearwardly extending arms 11 at to each end, as usual, and the protector rod carries the usual dagger 12 arranged to cooperate with the frog 13 to stop the loom in case the shuttle fails to enter the box, or in case of rebounding of the shuttle.

55 The sword 15 is connected to the operating crank in the usual manner by a pitman 16, and to the sword is connected a shuttle box 17 which may be of any ordinary construction, and at the rear wall of the shuttle box, or in some cases at the front wall thereof, is a binder 18 that is arranged to engage against the shuttle and check its motion.

In looms of ordinary construction, the binder is acted upon by a binder finger carried by the protector rod and connected thereto by a s ring in such manner that the binder will be torced inward against the shuttie and held under constant stress so as to bind against the shuttle as the latter enters the box, and to hold the shuttle until after the operation of the picker, so that the picker mechanism must overcome the frictional resistance of the binder before the shuttle can be started across the shed.

In the present case the binder finger 19 is secured to the rearwardly extending arm 11 of L he protector rod, and the upper end of the binder finger lits under a small socket plate 20 carried by the rear of the binder, while the protector rod spring 21 operates in a direction the reverse of usual so that it will tend to null the b nder 18 outward from the shuttle cox, instead of forcing it into the shuttle box to engage the shuttle.

To the sword is secured a bracket 25 having a rearwardly extending flange 26, to the lower face of which is pivoted a lever 27 having two arms 28 and 29, the arm 28 being provided with an upwardly extending portion in which is formed an opening 30 for the reception of the end of a rod 31 that works loosely within the o ening. The rear end of the rod 31 is pivotal y connected to a bracket 32 that is secured to the lower face of the Eitman rod, and mounted on this rod is a elical compression spring 33, one end of which bears against a collar 34 that is adjustahly secured to the rod 31, while the opposite end of said spring bears against a loose washer 35 that is forced against the arm 28 of the lever by the spring 33. The stress of the spring 33 may be adjusted by moving the collar 34, after which the collar is locked in position by a set screw or other suitable securing means. The arm 29 of the lever is arranged to bear against a depending arm 37 that is adjustably secured to the arm 11 of the protector rod, and the position of this arm may be adjusted with reference to the lever.

The ivotal connections of the itman' with re rcnce to the sword, the rod 31, and the stroke of the crank is such that as the lay starts to beat up the rod 31 will be forced forward, and its spring will exert suilicient force against the arm 28 of lever 27 to thrust the opposite end of said lever against the arm 37, thereby rocking the protector rod against the stress of its spring, and moving the binder finger 19 against the binder 18, so that the latter will be forced into the shuttle box in position to check the shuttle as the latter enters. During the reverse move ment, as the lay moves away from the fell, the picking mechanism operates as is usuai in all fast cotton looms, and during this move-- ment the rod 31 is retracted, so that the stress of the s ring 33 is less than that of the force 0 )poscn to it by the protector rod spring, and the latter will then move the rotector rod in such manner as to cause the 'nger 19 to pull the binder outward, relieving all binding strain on the shuttle, so that. the picker mechanism may operate to the fullest advantage and without the necessity of overcoming the friction of the binder.

The arrangement of the mechanism for accomplishing this purpose may be varied, and the binder may be disposed at the front of the shuttle box in some classes of looms, while the time of operation 'w'lll be controlled by the speed oi the loom, it being understood that the picking o eration occurs at diil'ercnt points in the stro re of the lay in looms running at diil'erent speeds, the picker stroke starting almost immediately after the beginning of the movement of the lay from the fell in high speed looms, and the picker stroke being delayed more and more as the speed of the lay decreases.

I claim:-

1. In shuttle check mechanism for looms the combination with a sword; of a binder atone side of the path of the sword, a springcontrolled protector rod rigidly connected to the binder and tending to force the binder from engagement with the shuttle, a reciprocating rod, a spring thereon, a lever mounted upon and disposed to swing in a plane perpendicular to one side of the sword, said lever constituting power-transmitting means between the spring on the rod and the spring-controlled protector rod, said spring on the reciprocating rod tending to force the an arm, a binder finger upon the arm, a

binder, a lever pivotally connected betweer.

its ends to the sword, a rod actuated by the pitman and slidably engaging the lever, elastic means upon the rod for actuating the lever, and an arm upon the arm of the protector rod and in the path of and disposed to be actuated by the spring pressed lever.

3. The combination with a shuttle box. a sword, and a pitman; of a lever pivotaliy connected between its ends to the sword, a protector rod, a binder movable therewith, eiast-ic means for holding the rod and binder normally in a predetermined position, a rod actuated by the pitma-n, and a spring upon the rod for actuating the lever to shift the protector rod against the stress of its elastic means.

4. The combination with a sword, and a lever pivotally connected thereto and movable therewith, said lever being mounted to swing in a plane perpendicular to the side of the sword; of a binder, spring controlled means normally in the path of the lever and movable with the binder, a pit-man, means for actuating the same, and elastic means upon the pitman for actuating the lever.

5. In shuttle check mechanism for looms,

a protector rod, a binder finger carried the reby, a sword lever pivoted thereto and provided at one end with an opening, and at the opposite end arranged to transmit movement to the protector rod, a pitnian connected to the sword, a bracket connected to the pitlnan, a rod fulcrumed to the bracket and extending through the opening in the lever, a spring mounted on the rod and hearing at one end against the lever, and an adjustable collar carried by said rod and forming a. bearing for the opposite end of the spring.

In testimony that I claim the foregoing as my own, I have hereto ailixed my signature in the presence of two witnesses.

ENOOH H. SMITH. \Vitnesses:

Lrzzrn MoDow, J. A. SAWYER. 

